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M40 rifle
Photo: Joe Loong · Wikimedia Commons · CC BY-SA 2.0
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M40rifle

Sniper Rifles · United States · 1966
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M40rifle

M40 rifle
M40 rifle Photo: Joe Loong · Wikimedia Commons · CC BY-SA 2.0
* Absolute score — assessed within category · no era adjustment
Accuracy
85
Effective Range
75
Consistency
80
Terminal Power
70
Reliability
90
Optics
60
Ergonomics
55
Suppressor Compatibility
40
Portability
70
Cost-Effectiveness
95
Origin United States
ManufacturerUnited States Marine Corps
CategorySniper Rifles
EraCold War
In service1966
Operators5 countries
Quantity40
Data Quality87%
MASS(Military Archive Scoring System)
75
Sniper Rifles MASS Rating
20/32
Cold War
108/182
All-Time
Sniper Rifles · 10 axes scored
Accuracy
85
Effective Range
75
Consistency
80
Terminal Power
70
Reliability
90
Optics
60
Ergonomics
55
Suppressor Compatibility
40
Portability
70
Cost-Effectiveness
95
ⓘ Regardless of era, the same scoring system applies to all units in the sniper rifles category.
01 / Overview
M40 rifle
Production
1966–
Quantity
40
Operators
Conflicts
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
SNIPER RIFLES · COLD WAR
20
PERFORMANCE/PRICE
92
UNIT COST (2025 USD)
—
75
sniper rifles category
ⓘ Performance/Price and MASS score are computed across all units in the sniper rifles category, regardless of era.
02 / Specs & Design
◎General6MOD.6
  • First Production Year1966
  • Service Entry Year1966
  • DesignerRemington Arms
  • Weight (Empty)6.57 kg
  • Currently In ServiceNo
  • Notable UsersUnited States Marine Corps
◈Cartridge & Calibre7MOD.7
▣Operation7MOD.7
◇Ballistics2MOD.2
  • Muzzle Velocity777 m/s
  • Effective Range (point)800 m
◆Barrel & Sights7MOD.7
  • Barrel Length635 mm
  • Rifling Twist1:12 right hand
  • Rifling Grooves6
  • Sight TypeScout Sniper Day Scope (SSDS)—Schmidt and Bender PM II 3–12×50.
  • Optic RailYes
  • Iron SightsNo
  • Threaded BarrelYes
▤Construction6MOD.6
▲Production & Cost2MOD.2
  • Production Start1966
  • Variants4
03 / History
SERVICE LIFESPANStill in Service
  1. 1945First deployment: Cold War
  2. 1966Production started
60
years in service
40
units produced
5
countries operating
ⓘ The producing country still actively operates it.
05 / Operators
Operator Inventory1country · 85units
85active
M40 rifleSALES3records
YearBuyerQuantityAmountPresent Value (2025)
—Afghanistan———
—Malaysia———
—Philippines85——
ⓘ "Present Value" is an estimated amount adjusted for inflation.
📖 TERMS ON THIS PAGE6terms
A bolt action is a type of firearm action that requires the user to manually cycle the bolt to load and eject cartridges. It is uncommon in pistols.
Integral bipod: a permanently attached, built‑in bipod that provides a two‑point support for a firearm, allowing it to be rested on a surface without separate accessories.
An internal magazine is a pistol magazine that is contained within the grip and loaded from within the firearm.
A mounting system for attaching optical sights to rifles.
A pistol barrel with external helical grooves allowing the attachment of a suppressor or other muzzle devices.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Sniper Rifles entry →